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Phase 2 Completed N=132 Randomized Triple-blind Prevention

Safety and Immunogenicity of Clade C ALVAC and gp120 HIV Vaccine

HIV Infections
Source: ClinicalTrials.gov NCT03284710 ↗
Enrolled (actual)
132
Serious AEs
1.5%
Results posted
Feb 2021
Primary outcomePrimary: Occurrence of Vaccine-induced Systemic IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C) in Group 1 and Group 2 — 29; 26; 27; 27 Participants — p=0.358

Summary

The purpose of this study is to evaluate the safety and immune response to an HIV clade C vaccine and to an MF59- or alum-adjuvanted clade C Env protein in healthy, HIV-uninfected adults.

Outcome Measures

OutcomeResultp-value
PRIMARY
Occurrence of Vaccine-induced Systemic IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C) in Group 1 and Group 2
29; 26; 27; 27; 29; 27 0.358
PRIMARY
Level of Vaccine-induced Systemic IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C) in Group 1 and Group 2
22000; 22000; 22000; 22000; 22000; 22000 0.238
PRIMARY
Occurrence of Vaccine-induced Serum IgA Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C) in Group 1 and Group 3
22; 27; 12; 22; 18; 27 1.000
PRIMARY
Level of Vaccine-induced Serum IgA Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C) in Group 1 and Group 3
22000; 22000; 8047.1; 7595.5; 8312.8; 12210.8 0.215
PRIMARY
Number of Participants Reporting Local Reactogenicity Signs and Symptoms: Pain and/or Tenderness
21; 20; 22; 17; 14; 13
PRIMARY
Number of Participants Reporting Local Reactogenicity Signs and Symptoms: Erythema and/or Induration
30; 31; 33; 22; 4; 5
PRIMARY
Number of Participants Reporting Systemic Reactogenicity Signs and Symptoms
32; 28; 30; 21; 4; 7
PRIMARY
Number of Participants Reporting Adverse Events (AEs), by Relationship to Study Product
1; 2; 0; 0; 27; 26
PRIMARY
Number of Participants Reporting Adverse Events (AEs), by Severity Grade
5; 7; 12; 2; 18; 16
PRIMARY
Number of Participants Reporting Serious Adverse Events (SAEs)
1; 0; 0; 1; 27; 28
PRIMARY
Number of Participants Reporting Adverse Events of Special Interest (AESIs)
0; 0; 0; 0
PRIMARY
Number of Participants Reporting New Chronic Conditions (Requiring Medical Intervention for >= 30 Days)
0; 1; 0; 2; 28; 27
PRIMARY
Chemistry and Hematology Laboratory Measures - ALT (SGPT), AST, Alkaline Phosphatase
72; 70; 76; 79.5; 66.5; 68
PRIMARY
Chemistry and Hematology Laboratory Measures - Creatinine
0.00071; 0.0007; 0.000705; 0.0007; 0.00071; 0.0007
PRIMARY
Chemistry and Hematology Laboratory Measures - Hemoglobin
13.75; 13.95; 13.85; 14.05; 13.5; 13.5
PRIMARY
Chemistry and Hematology Laboratory Measures - Lymphocytes, Neutrophils
2.1395; 2.095; 2.01; 2.341; 2.0755; 1.982
PRIMARY
Chemistry and Hematology Laboratory Measures - Platelets, WBC
5.805; 5.5; 5.575; 6.415; 5.67; 7.18
PRIMARY
Numbers of Participants With Grade 1 or Higher Local Laboratory Results
0; 0; 0; 1; 1; 1
PRIMARY
Number of Participants With Early Study Termination Associated With an AE or Reactogenicity
0; 0; 0; 0
PRIMARY
Number of Participants With Study Product Discontinuation Associated With an AE or Reactogenicity
1; 1; 0; 0; 0; 0
SECONDARY
Occurrence of Vaccine-induced Serum IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C)
30; 27; 31; 16; 26; 28
SECONDARY
Level of Vaccine-induced Serum IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C)
22000; 22000; 22000; 22000; 22000; 22000
SECONDARY
Occurrence of Vaccine-induced Serum IgG Ab Binding to V2 Env Proteins
26; 28; 29; 15; 27; 28
SECONDARY
Level of Vaccine-induced Serum IgG Ab Binding to V2 Env Proteins
22000; 22000; 22000; 22000; 22000; 22000
SECONDARY
Vaccine-induced Occurrence of CD4+ T-cells Expressing Markers in Response to HIV Proteins Included in the Vaccine
15; 19; 16; 6; 16; 20
SECONDARY
Vaccine-induced Percentage of CD4+ T-cells Expressing Markers in Response to HIV Proteins Included in the Vaccine
0.209; 0.181; 0.222; 0.124; 0.216; 0.182
SECONDARY
Occurrence of Vaccine-induced Serum IgG3 Ab Binding to Env Proteins
28; 28; 29; 15; 14; 17
SECONDARY
Level of Vaccine-induced Serum IgG3 Ab Binding to Env Proteins
1049.2; 1184.2; 1086.2; 1739; 300.9; 314.5
SECONDARY
Occurrence of Vaccine-induced Serum IgA Ab Binding to Env Proteins
10; 11; 17; 5; 22; 19
SECONDARY
Level of Vaccine-induced Serum IgA Ab Binding to Env Proteins
1845.2; 661; 1434.2; 2502; 22000; 22000
SECONDARY
HIV-specific CD4+ T Cell Polyfunctionality by ICS - Functionality Scores
0.169; 0.171; 0.158; 0.15; 0.108; 0.129
SECONDARY
HIV-specific CD4+ T Cell Polyfunctionality by ICS - Polyfunctionality Scores
0.11; 0.12; 0.098; 0.106; 0.067; 0.087
SECONDARY
Occurrence of Vaccine-induced Serum IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C)
30; 27; 31; 16; 26; 28
SECONDARY
Level of Vaccine-induced Serum IgG Ab Binding to the 3 gp120 Env Proteins Contained in the Vaccine Regimen (ZM96, TV1.C, and 1086.C)
22000; 22000; 22000; 22000; 22000; 22000
SECONDARY
Occurrence of Vaccine-induced Serum IgG Ab Binding to V2 Env Proteins
26; 28; 29; 15; 27; 28
SECONDARY
Level of Vaccine-induced Serum IgG Ab Binding to V2 Env Proteins
22000; 22000; 22000; 22000; 22000; 22000
SECONDARY
Occurrence of Vaccine-induced Serum IgG3 Ab Binding to Env Proteins
28; 28; 29; 15; 14; 17
SECONDARY
Level of Vaccine-induced Serum IgG3 Ab Binding to Env Proteins
1049.2; 1184.2; 1086.2; 1739; 300.9; 314.5

Eligibility Criteria

Inclusion Criteria

General and Demographic Criteria

  • Age of 18 to 40 years
  • Access to a participating HVTN CRS and willingness to be followed for the planned duration of the study
  • Ability and willingness to provide informed consent
  • Assessment of understanding: volunteer demonstrates understanding of this study; completes a questionnaire prior to first vaccination with verbal demonstration of understanding of all questionnaire items answered incorrectly
  • Agrees not to enroll in another study of an investigational research agent
  • Good general health as shown by medical history, physical exam, and screening laboratory tests

HIV-Related Criteria:

  • Willingness to receive HIV test results
  • Willingness to discuss HIV infection risks and amenable to HIV risk reduction counseling.
  • Assessed by the clinic staff as being at "low risk" for HIV infection and committed to maintaining behavior consistent with low risk of HIV exposure through the last required protocol clinic visit.

Laboratory Inclusion Values

Hemogram/Complete blood count (CBC)

  • Hemoglobin ≥ 11.0 g/dL for volunteers who were born female, ≥ 13.0 g/dL for volunteers who were born male
  • White blood cell count = 3, 300 to 12,000 cells/mm^3
  • Total lymphocyte count ≥ 800 cells/mm^3
  • Remaining differential either within institutional normal range or with site physician approval
  • Platelets = 125,000 to 550,000/mm^3

Chemistry

  • Chemistry panel: ALT, AST, and ALP 140 mm Hg, diastolic blood pressure > 90 mm Hg, current smoker, known hyperlipidemia
  • Intent to participate in another study of an investigational research agent or any other study that requires non-HVTN HIV antibody testing during the planned duration of the HVTN 107 study
  • Pregnant or breastfeeding

Vaccines and other Injections

  • HIV vaccine(s) received in a prior HIV vaccine trial. For volunteers who have received control/placebo in an HIV vaccine trial, the HVTN 107 PSRT will determine eligibility on a case-by-case basis.
  • Non-HIV experimental vaccine(s) received within the last 5 years in a prior vaccine trial. Exceptions may be made for vaccines that have subsequently undergone licensure in a volunteer's country of residence. For volunteers who have received control/placebo in an experimental vaccine trial, the HVTN 107 PSRT will determine eligibility on a case-by-case basis. For volunteers who have received an experimental vaccine(s) greater than 5 years ago, eligibility for enrollment will be determined by the HVTN 107 PSRT on a case-by-case basis.
  • Live attenuated vaccines other than influenza vaccine received within 30 days before first vaccination or scheduled within 14 days after injection (eg, measles, mumps, and rubella [MMR]; oral polio vaccine [OPV]; varicella; yellow fever)
  • Influenza vaccine or any vaccines that are not live attenuated vaccines and were received within 14 days prior to first vaccination (eg, tetanus, pneumococcal, Hepatitis A or B)
  • Allergy treatment with antigen injections within 30 days before first vaccination or that are scheduled within 14 days after first vaccination

Immune System

  • Immunosuppressive medications received within 168 days before first vaccination. (Not exclusionary: [1] corticosteroid nasal spray; [2] inhaled corticosteroids; [3] topical corticosteroids for mild, uncomplicated dermatitis; or [4] a single course of oral/parenteral corticosteroids at doses < 2 mg/kg/day and length of therapy < 11 days with completion at least 30 days prior to enrollment.)
  • Serious adverse reactions to vaccines or to vaccine components such as eggs, egg products, or neomycin, including history of anaphylaxis and related symptoms such as hives, respiratory difficulty, angioedema, and/or abdominal pain. (Not excluded from participation: a volunteer who had a nonanaphylactic adverse reaction to pertussis vaccine as a child.)
  • Immunoglobulin received within 60 days before first vaccination
  • Autoimmune disease
  • Immunodefici
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT03284710). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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